| Business | Phone |
| Valley Audiology 2550 Almond Ave # 1, Concord 94520 | (925) 676-8101 |
| Audio Star Hearing Aid Svc 2353 Concord Blvd, Concord 94520 | (925) 687-3211 |
| Costco Hearing Aid Center 2400 Monument Blvd, Concord 94520 | (925) 566-4027 |
| Miracle-Ear 1001 Sunvalley Blvd, Concord 94520 | (925) 686-6889 |